In case the user has set up externalsrc outside of devtool, force
EXTERNALSRC to blank for the recipe when extracting so that the original
source URI is still in SRC_URI and we're still able to extract it. (This
isn't a problem with devtool itself because the bbappends within the
workspace layer that apply externalsrc are explicitly filtered out when
devtool parses a recipe).
(From OE-Core rev: 5be16d639d1b78d114755bfd552ac901d0fdf4a9)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>